1 intro

1.1 Purpose

supplementary analysis for jocn

1.2 Notes

Data/sample/preproc

  • UB55 sans 432332
  • surface + fMRIprep
  • schaefer 400-07

1st-Level GLM

  • 1trpk, runwise GLMs, shifted events

Target TRs:

  • Axcpt: 7, 8, 9
  • Cuedts: 9, 10
  • Stern: 11, 12
  • Stroop: 2, 3, 4

GLM contrasts:

  • Axcpt: \(\text{BY} - \text{BX}\)
  • Cuedts: \((\text{InConSwitch} + \text{InConRepeat} - \text{ConSwitch} - \text{ConRepeat})/2\)
  • Stern: \(\text{LL5RN} - \text{LL5NN}\)
  • Stroop: \((\text{PC50InCon} + \text{biasInCon} - \text{PC50Con} - \text{biasCon})/2\)

RSA

Similarity measure:

  • Similarity measure: standard linear correlation
  • NOT cross-valdiated (e.g., not cv-Euclidean/Mahalanobis)
  • NOT prewhitened
  • betas averaged across run, within task, for RSA

models:

  • focused only on between-task correlations
  • atanh transformed

2 quick look: all correlations

3 Parcel-wise stats

3.0.1 hihi

3.0.2 hihi_hilo

3.0.3 hihi_lolo

3.0.4 hilo

3.0.5 lolo

3.0.6 lolo_hilo

4 DMCC 35 versus null 35

## # A tibble: 4 x 5
## # Groups:   contrast [2]
##   contrast  parcelset        p statistic      b
##   <chr>     <chr>        <dbl>     <dbl>  <dbl>
## 1 hihi_hilo dmcc35    1.61e-11      8.53 0.0448
## 2 hihi_hilo null35    6.75e- 6      5.00 0.0111
## 3 hihi_lolo dmcc35    1.11e-10      8.00 0.0711
## 4 hihi_lolo null35    7.11e- 5      4.31 0.0164
## # A tibble: 2 x 4
##   contrast         p statistic      b
## * <chr>        <dbl>     <dbl>  <dbl>
## 1 hihi_hilo 6.12e-10      7.54 0.0337
## 2 hihi_lolo 1.25e- 9      7.35 0.0547

5 univariate effects